if sin=3/5 then find the following, cosec^2 - cot^2a
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Answer:
Answer
sinA=
2
3
(Given)
2cot
2
A−1
=2cot
2
A+2−2−1
=2(cot
2
A+1)−3
=2cosec
2
A−3
=
sin
2
A
2
−3
=2(
3
2
)
2
−3
=
3
8
−3
=
3
−1
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